Protection of automobile power plants from cold



M'. c. FURSTENAU.

PROYECTION OFAUTOMOBILEPOWER PLANTS FROM COLD.

APPLICATION FILED MAR.25, I919.

Patented Nov. 16, 1920-;

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M. C. FURSTENAU. PROTECTION OF A UTOMOBlLE POWERYPLANTS FROM 00w.

APPLICAUON FILED MAR 25. 1919. i

' Patented Nov. 16, 19.18.

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' UNITED STATES PATENT OFFICE.

MARTIN C. FURSTENAU, PHILADELPHIA, PENNSYLVANIA.-

PROTECTION OF AUTOMQBILE POWERQLANTS FROM COLD.

1 '0 all whom it may concern:

Be it known that I, MARTIN C. FUns'rE- NAU, a citizen of the UnitedStates, residing at the city of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new and.useful Improvements in the Protection of Automobile Power Plants fromCold, of which the following is a specification.

The principal object of the present invention is to provide a simple,ellicient, rcliable and comparatively inexpensive electrio heatingapparatus capable of easy permanent incorporation in, or detachableconnection with the circulating system of an automobile power plant, andadapted for attachment to any ordinary electric light socket.

The invention will be claimed at the end hereof but will be firstdescribed in connection with the embodiment of it chosen forillustration in the accompanying drawings forming part hereof and inwhich- Figure 1, is a side view, partly in sec tion, of apparatusembodying features of words, the casing 1,-is included in the pipes 103, that lead to the cylinder jackets and of which one is connected as bya branch pipe 4, with the pump. The casing 1', has two lobe chambers 5and 6, which communicate with it at the top and bottom and provide afluid way 7. 8, is a hot pointprojecting into the casing and disposedlengthwise of its fluid way l. A hot point is a well understood piece,of electrical apparatus which by resis'tance to the passage of currentthrough it becomes hot and will impart tion of an automobile powerplant.

Specification of Letters Patent. Patented N 16, 1920,

Application filed March 25,

1919. Serial No. 284,9.

its heat to water or fluid in which it can safely be immersed. 9, is aflexible electric conductor attached to the hot point 8, and adapted forconnection to any socket of a source of current. The arrows indicate thedescending flow of the cooler fluid and the ascending flow of the hotterfluid heated by the hot point 8, in the circulating system,

In Fig. 3, 1 is the enlarged casing having pipe connections 2 and 2 forincluding the casing in the cooling fluid ClI'CIIlfb The pipe connection2 hooks into the filling opening oi? the radiator and dips into thefluid, and the pipe connection 2, is detachably connected. to the lowestpart of the circulation system, for example, to the radiator drain 1.0,which is fitted with a valve 11 closed when the pipe connection 2, isdetached. The hot point 8, projects into the casing l, and is disposedlengthwise of its fluid way 7. 9, is the socket connection attached tothe hot point. The circulation induced by the hot point is from thelower to the upper portion of the casing 2. The screw bushing 11, may besplit into parts in order to apply it to the stem of the hot-point, andthe parts brazed or soldered together after application to the stem. Thebushing can then be screwed into the tapped opening in the wall of the vcasing through which the hot point has been inserted.

The device above described may be readily attached to any power plantcirculation sys-' tem and when connected to a source of electric supplywill keep the water in the system from freezing, even in severe weather.

I claim: p

1. Heating apparatus for automobile power plants comprising thecombination of an enlarged casing having pipe connections for includingthe casing in series in thecooling fluid circulation system of thepowerplant, a hot-point projecting through the casing and disposedlengthwise of its fluid way; an clear of its walls, and a socketconnectionattached to the hot-point, substantially as described.

2. In heating apparatus for automobile power plants the combination ofan enlarged casing, a hot-point projecting throu h the casing and clearof its walls, and a sp it and soldered bushing applied to the shank ofthe hot-point and adapted to engage a threaded opening in series in theWall of the casin substantially as described.

3. l leating apparatus for automobile 10 power plants comprising thecombination of an enlarged casing having lobe chambers communicatingwith it at the top and providing a fluid way, pipe connections forincluding the casing in the cooling fiuid-circulation system of thepower plant, a hot point projecting into the casing and disposedlengthwise of its fluid way, and a socket connection attached to thehot-point, substantially as described.

MARTIN O. F URSTENAU.

